A visitor views an exhibit during the 2019 China Kunming International Stone Expo in Kunming, southwest China's Yunnan Province, July 13, 2019. The 2019 China Kunming International Stone Expo opened in the city of Kunming Wednesday. Exhibitors from 24 countries and regions including Italy, Germany, Sri Lanka, Myanmar and Afghanistan are participating in the six-day expo. (Xinhua/Hu Chao)